Here is a collection of articles on the subject.
1. Hindustan Times, Faizur Rahman — Hazrat Aisha was 19, not 9
https://m.hindustantimes.com/india/hazrat-aisha-was-19-not-9/story-G4kaBHqM0VXoBhLR0eI2oO.html
2. World Muslim Congress, Abdul Fauq — Did Prophet Muhammad marry a six-year-old?
https://worldmuslimcongress.org/did-prophet-muhammad-marry-a-6-year-old/
3. The Conversation, Editorial –Child Marriage is still Legal in the United States
https://theconversation.com/child-marriage-is-still-legal-in-the-us-88846
2.